Battery-feed mechanism for looms



Jan. 27, 1931. i J NORTHRQP 1,790,017

BATTERY FEED MECHANISM FOR LOOMS .Filgd Feb. 6, 1929 i-" a t'enizecl Jan. 27, 193i 1 i ITED sTArss .JoNAs NORTHROP, or HOPEDALE, 'MAssAonUsii'rTs; ASSIGNORf TO sr-AnnARn- Looms,

INCYQOF SPARTANBURG, SOUTHCAROLINA,1AFCQRPORATION or scorn CAROLINA" BATTERY-FEED MEGHANISM FOR Looms Application-filed Februa y's, 1929. serial No. $37,875. l

a battery feed which {lS simple inconstruc V tionand positive in operation and by which the hopper is positively retained in its prop- .er position against the usualshocks and ti -10'brations incident to operation'oit the loom.

.,-To this end, the invention consists of the battery feed mechanism .heremaiter described and particularly defined in the claims.

1'5 ing the preferred-formof theinvention,

lis a sectional. elevation of ahopper and associated parts when the r transfer mechanism 1s 1nact1ve;jF1g. 21s a sectlonal elevaf tion of the mechanism shownin Fig. 1 at the 'LOIlClllSlOD of a transfer operation; and lfig. 3 1s a sectional deta l View viewedfroiii the opposite side of the apparatus. p

The illustrated embodiment of-jthe inven- I l tio n comprises the hopperstandb mounted" and the hopper disks;

.011 the loom frame only one of which, namely, the butt end disk Sis shown. The disk Sis provided with the usual bobbin seats 10; The hopper rotates on the stud 12. Secured to "the hopper is a 1 ratchet 14V having'the same number ofteeth as there are bobbin seats the disk8,

The transferrer 16 which is shown partly broken away in Figs. 1 and 2 isprovided with a hub 18 which is pivoted on the stud 20 and from which depends the lever 22 con- 'necting in the usual way with the change mechanism. At its free end, the transferrer is provided with the hammer portion adaptd'to engage the bobbin 26 to force it from its seat into the shuttle. Mounted on v i the hopper stand is the abutment 28 against which the butt of the bobbin 26 engages.

QAfter a bobbin is transferred,fromthe hopper, the hopper is advanced by means pawl 30' which, cooperates with the ratchet 14. The pawl is pivoted on a stud 32 in a pawl carrier 34 which is pivoted at 36cm the hopper plate 6. Thepawl carrier is provided with a tail portion 38 curved'to 'coIiform to the hub 18 of the transferrer be seen, isi' niounted independently of; the

carr er. 'As the transferr'er approaches the the last portion ofthe movement of the trans; ferrer, the pawl carrienis moved from the position shown in Fig; l to that shown in lF-FECE f "whereby,upward movement of thepawl'car I rier is limited. Thepawlfcarrierfit 'Will' transferrer and initial; movement of the]; transferrer s inefi ective'to advance the pawl" Fig. 2,'througli a distance sufficient to move" V the 'parltit) over one tooth offthe ratchet. In the accompanying drawings illustr'at-f A heavy spring 42 is provided for thedouble purpose of restoring the pawl carrier toiits original ,positionthereby feeding the hopper to advance a new bobbin to transfer position when the t-ransi-errer isfre'tracted and "of -pressing the pawl ilOinto engagement with the ratchet. Accordingly, the spring presses pawl ;30. As shown particularly Fig. 3, the pawl is recessed or channeled at 46 to providea seat forthe end of the spring. The;

pawlis also provided with a downwardly extendingnose 48 against 'which-theend of the spring bears. V The spring" is a heavy wirespring and it willbe seen that it urges the pawl carrier: upwardly withgconsiderable force,- 1 However, because of its small purchase on the pawl, it exerts only a small force on the latter, in fact, only a'suiiicient forcewto'insure pressing .of the pawlinto proper engagement with the ratchet untilthe transferrer isretraeted, whereupon it swings the pawl carrier-upward about its pivot pin 7 I 36 and causes thefeeding movement of the pawl;

ThepaWl 30 is provided with a tail 5O which'is adapted to engageastop 52 on the pawl carrier armi'f for anyv reason the trans terror is removed frornthe "stud so that the. upward movement of the pawl carrier 18 not limited byfthe'engagenie nt of the muse with the t ran'sferrer hub. In normal operation, the stop 52 is not en'o'ao'ed bythe paw-l.

In'normal operation when thetransferrer is inactive,-the hopperis'maintained in its proper position with considerable rigidity;

The hopper cannot be moved in a clockwise direction because oi the engagement of the bobbin withthe abutment 28 and the force of the heavy spring 42prevents movement of the hopper in the reverse direction. hen replenishment is called for, the traiisferrcr starts its downward movement, thereby unseating the bobbin and forcing it into the shuttleaflhe pawl carrier andpawlremain stationary during the greater'part of the movement of the transferrer, that 15, until the transferrer strikes the projection 40. The movement of the pawl carrier commences approximately when the bobbin is unseated. gThe movement imparted ,tothe pawl carrier by the last portion of the movement of the transferrer is sufficient to retract o the weight of the bobbins in thehopper,

after the bobbin 26has been removed from engagement with the abutment 28. Upon return movement ofthe transferrer, the hopper tendsto' rotate ma clockwise dn'ectwn under the action of the spring 42, butthis movement is initially limited by the striking of th freshbobbin against the-transf-errer.

advance until thenew bobbin is positioned against the abutment 28.

ltwillbe seenthat the presentinvention' provides a-battery feed mechanism of simple construction, in'which the bobbin is held under positive control during transfer.

The invention having been thus described, what isclaimed is: l V 1. A battery feed mechanism for looms having, in combination, a hopper,a trans-' ferrer, a pivotal mounting for the trans-j,

ferrer. ho. )per advancin and holdin inieans .a D .b

includin a ratchet and a single oawl con- {'3 g l i o ructed and arranged to hold the hopper with light restraint between the feed movements and to advance t with strong force, for feed movements asthe transferrer approaches the limit of its transfer movement.

2. A battery feed mechanism for looms having, in combinatioma hopper, a trans ferrer, a pivotal mounting for the transferrer, hopper advancingmeans including one single pawl only, and a pivotally supported pawl carrier fnpon which the pawl in turn pivotally mounted, both being supported independently of the transferrer, and

carrier. having a projection adapted to be engaged by the transferrer as it approaches 7 the limit of its transfer movement.

As soon asthe transferr r rises clear of the bobbin,'-the hopper s free to.

3. A battery feed mechanism for looms having, in combination, a hopper, atransferrer, means for pivotal'ly mounting the transferrer, a ratchet onthe hopper, pawl, a separate pawl carrier 'pivotedindependent- 1y of the transf rrer andhaving a projection adapted to'belengaged by the transferrer when the bobbin is unseated, and means for restoring the pawl carrier toward its initial positioi'n' -l-. A battery feed mechanismlfor looms having, in COIDblIlfiillOll, a hopper, a transh'e'rrer, a ratcheton the hopper, a single pawl for advancing the ratchet, a pawl carrier on which-the pawl is pivoted, a pivotal mounting for the pawl carrier, constructed and arranged to cause engagement of the transferre r and the pawl carrier toinove the. lat

ter only after thebobbin is unseated. I, g

5. A battery feed 'mechanism for looms having, in combination, a hopper, a ratchet for advancing the.. ho pper,"a transferrer, =a pawl carrier, apawl pivoted on the pawl'car-' rier and engaging the ratchet, the tra sferrer and carrier having provision for back-feed ing the carrier to move -the pawl over/the ratch t, and a spring for feeding thep'awl' car ier with feedingforce toward its original po .tion and for pressing-the pawl toward the ratchet with liglitpreSsure to hold the pawl in engagement therewith. (i, A having, in combination, a hopper, a ratchet on the hopper, a transferre'r, apivotal mounting for the transferrer', a pawl engaging the ratchet, a pawl carrier on which the pawl is battery feed mechanismgfor looms pivoted, a pivotal mountingifor the pawl carrier, a projection on the pawl carrier to befengaged-bythe transferrer as the latter.

approaches the limit/of its transfermovement, the pawl havinga spring engaging portion close torts pivot, and-a spring engaging the pawl and acting to give feeding. movement to the pan-learner and to. press the pawl with light force against the ratchet.

7. A battery feed mechanism forlooms. having,in combination, a hopper, :a. ratchet on the hopper, a transferrer, a pivotal mountr ing for the transferrer, a pawl engaging the ratchet, a pawl carrier on which the pawl is pivoted, a pivotalmounting for the pawl car.-

1631', a projection on the pawl carriertoben engaged by the transferrer as the'latter ap proaches the limit of'its transfer,inovement, the pawl having a, spring engaging portion in proximity'to its pivot, and a curved spring bearing against the stationary part of the mechanism at one end and against the pawl atthe other end to give vfeeding movement to the pawl carrier and to lightly press the pawl against the ratchet. I

In testimony whereof I have signed my name to this specification. 4 2 w I JONAS no 'arnaoel 

